Home / 4,280.91-6,421.23-1,814.15

Finding the Fourth Proportional to 4,280.91, 6,421.23 and 1,814.15

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Solution

The fourth proportional to 4,280.91, 6,421.23 and 1,814.15 is: 2,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.91 : 6,421.23 = 1,814.15 : x
  2. Step 2: Convert to fraction form
    4,280.91/6,421.23 = 1,814.15/x
  3. Step 3: Cross multiply
    4,280.91x = 6,421.23 × 1,814.15
  4. Step 4: Simplify right side
    4,280.91x = 11,649,042.30
  5. Step 5: Solve for x
    x = 11,649,042.30/4,280.91
  6. Step 6: Final answer
    x = 2,721.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.